Shade roller locking extension



Nov. 3, 1931. s, BUSHNELL 1,830,223

SHADE ROLLER LOCKING EXTENSION Filed NOV. 4, 1930 5 INVENTOR {5 #055514 aaus/x/vzu.

Patented Nov. 3, 1931 UVNITEDTSTATEVS. PA E M F CE RUSSELLSTEWARD BUSHNELL, onrvnw YORK, N. Y., ASSIGNOR T STEWART HARTS- HORN COMPANY, OF nests rmwARx, NE -IERSEY, A CORPORATION or NEW "JERSEY SHADE ROLLERLOCKING EXTENSION Application filed November 4, 1930. Serial No. 493,270.

The invention relates to, certain new and useful improvements in shade rollers and particularly in extensible metal shade roll- ,ers'.

. The general object. of the :in vention'is to provide new and improved means for .locking the two parts of the rollerin any desired relative position. Further objects of the invention are to provide sucha locking device which is-simple and inexpensive and which. may'beoperated without the use of special tools..; 1 fThe invention is illustrated-in the accompanying drawings, wherein Fig.1 is a side elevation, partly in section, of a portion of a shaderoller einbodyingthe invention; Fig. 2 isan elevation of parts of the locking mechanism usedin the embodiment shown in Fig.

1; 'Fig.;.3 1s a cross-.section -of the roller shownin Fig. 1,. taken at the line: 3'I3 of Fig. 1;'Fig. 4 is a side elevation,,partly in section, ofpartof a roller showing another embodimentof the invention; and Fig. 5 is a: 'sideelevation' of some of thewparts :comprising the locking. means in the embodiment illustrated in Fig. 4. .Similar'reference numerals inthe drawings refer to like parts. Referring to the drawings, Fig.1 shows part of a shade roller formed of metal tubing. ,The main body-portionfi of the roller has a groove 7 in which theend of the shade carried by the rolleris secured by means of a'fillet of wood or by similar means. 'In the body 6 is the spring and'other mechanism which operates the roller, which is not shown.

FThe roller has an extension portion '10 Which is 'slidably .connected with the body portion 6 by meansof'aj resilient tubular member '11. the extension portio n 10 is a groove 7 in line with the groove 7 in' the body portion. This resilient tubularfm'ember 11 is permanently "secured 'inj'the extension member 10 by means of the groove 12 which formed the tubingjnear the end of 1' the roller. and clinches the 1 walls of the extension portion 10 and the tubular member 11 togetherl' It is further secured'by soldering the end of the extension portion 10 to the" tubular member 'llat the point 14.

I Inthe tubular member 11, which has an i 7 outside diameter of the same dimension, as the inside diameter of the body portion 6, there isa' slot 1 6 ,This slot has a dual purpose, namely, to' accommodate the groove 7 in the bodyand the groove 7 in the extension 10 and to make the walls of the tubular member 11 expansible. The cooperation of the groove 7 with the slot 16 in thetubular member 11 prevents the rotation of the parts relative to one another and. keeps the groove 7 in the'extension l0 and the groove 7 in the body6 in alineinent atall times.

.As willtreadily be understood, the length of the roller may be varied to suit windows of different dimensions by sliding the extension 10 and .its integral tubular member 11 in and out ofthe body 6. This changes the distance between the pintle 18 and the correspondingpin tle on the 'other end of the roller, which is not shown. V The meansfor locking the extension 10 and the body 6 in anydesired relative position willnow bedescribed. V In the end of the extension 10 is. a metal plug 19 which has a central hole 20. This plug 19 is immovably secured in placejby the groove 12 and the end of the wall of the extension 10 which is turned in over itf Fig. 2, shows locking means comprising a conical expander22 fixed to a rod .23. Ontheend of the ro'd23 opposite to the expander 22 is a reduced portion which forms the: pintle 18. Adjacent to this reduced portion are screw. threads 24. A nut 26, internally threaded' to fit the threads 24:, and having a shoulder 27 is inserted in the hole 20 in the plug 1 9, which serves'as a bearing for/the nut 26. In the expander 22 is a notch 28mto accommodate thegroove 7 in the body portion and which corresponds with the slot 16in the tubular member 11.

When the-parts are assembled, as shown in Fig.1, and the expander 22. is positioned so "as to exert no pressure'on the walls of the tubular member 11, the member 11 will slide freely in'the' body' portion 6. When the nut 26 is tightened,however, it draws the expander 22, 'bymeans of the rod 23, into the end of the resilient tubular member 11 and presses the'walls thereof against the walls of the body 6 and securely clamps the extension portionlO relative to thebody 6 of theroller. It will be observed that this clamping device may be operated even'when the shade is on the roller by reason of the position of the nut 26. The notch 28 in the expander 22, cooperating with the groove 7, prevents the rotation of the ex ander 22 when the'n'ut 26 is rotated. 7

Figsq4 and 5, show another embodiment of the invention. Fig.4, shows part of, a shade roller formed of metal tubing having a main I body portion 6 in which is contained the spring and associated mechanismfor rotating the roller. lnthe body portion 6 is a groove 7 in which the end of-the shade carried by the roller is'secured by means of a fillet of wood orby similar means. The roller has an extension 30 Which is slidably connected with the body portion .6 by. meansfof a resilient tubular'member 31. This resilient'tubular;

member 31 is permanently secured in the extension 30 by soldering them together at the V point 32. The resilient tubular member 31- tion, as

r roller,.which is not'shown.

j The means shown in Figs,4.and 5 for lock- 7 ing'the extension 30 and the'body portion 6 in any desired relative position will now be described. Fig. '5 shows a conical expander 36 in which is a threaded opening 37 and a slot 40; The" slot 40 receives the groove 7 the body 60f the roller and prevents the ro-.

tation of the expander 36. The opening 37 receives the'threaded end 41 of the rod42. The rod-42has .areduced outer end 35 which forms the pint-leior one end of-the roller. Immov'ably secured upon the rod 42 is the collar 45. This collar has an external'dia meter the same as the internal diameter of the extension portion 30, Fig. 4. Thetubular member 31. is secured within the extension 30 so thatfits outerend is within the walls of the extension, as shown in Fig. 4.' The distance between the ends of the extension 30 and the tubular member 31 isequal to about half the. depth of the collar 45. The end of the tubular member 31 provfidesa bearfing against which the collar'45 rests; "In the collar 45 are holes 46 which enable one to rotate the'collar by inserting thereina small nail, a stiii wire, or an appropriate tool.

.' When the. parts of the rollerand locking mechanism are assembled, as 'shownin Fig. 4, the extension 30 is locked relativeto'the body portion 6 by rotating the collar 45, which in turn rotates the'rod 42 which, through the screw 41, draws the expander 36 into the end of the tubular .member 31 and expands its walls against the body portion 6.

'As will be obvious, various modifications in the structure may be made without departing from the'spirit of the invention;

I claim; p

1. An extensible-sheet an-r0116]; comprising a body portion and an extension pon tion, said portions being of substantially thesame outside diameter and each having .a longitudinal groove, a resilient tubular member permanently-secured within saidexi tension portion and slidablewithmsaid body portion, said member having'a slot adapted to rece ve saidgroove, andmeans for locking sald member in said body portion comprisingaconical expander inthe endof said tubular membery'a screw for moving sald expander al ong 'the axis of said tubular member, and

meansexternal to' the roller for operating said-screws V V 1 2. An extensible sheet metal roller comprisv ing a body portion and an extension portion,

said portion being of substantially the same outside diameter and each having a-longitudinal" groove, a resilient tubular member permanently secured within said extension portion and slidable'within'saidbody por- 'ti'on, said member having a slot adapted to receive said gr-oove, and means-for loeki'ng said member in said bodyportion comprising a-conical expanderin the end of'saidtubularmember, a rod fixed to said-expander, a plug in the end of said extension portion having a hole through which said rod ex-- tends, screw threads on said 2 rod adjacent said hole and a nut on said threads bearing again-st'said plug. Y

- 3. An extensible-sheet metal roller comprising abody portion and an extension por- 't-ion, saidportions being of substantially the same outside diameter "and each having a longitudinal groove, a resilient tubular member permanently secured within said extension portion and slidableiwithin said body portion, saidmember having a slot adapted to receive .saidt groove,.and means for locking said member in said bodynportion comprisinga conical expanderv in the end of said tubuend of said extension, :1; rod connected to said expander, bearing surfaces at the outer-end of said extension, a threaded'section on said rod and a nut thereon resting against said bearing surfaces, whereby said expander may 7 be moved axially relative to saidextensionQ 6. A locking device for a shade roller comprising a conical expander having a threaded aperture, arod having a threaded end in said aperture, {said rod extending through said extension'and havinga protruding end, a; collar fixed on said end, bearing surfaces in said'extension for said collar and means ,on said collar whereby it can be rotated In testimony whereof, I have signed this ;pecificati0n.

RUSSELL STEWARD BUSHNELL. 

